#!/usr/bin/env python

# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Street Identity Image Serving Handler."""

from base import BaseHandler
from google.appengine.ext import db
from lib import http

__author__ = 'Maciej Machulak'
__maintainer__ = 'Maciej Machulak'
__email__ = 'mmachulak@google.com'

__copyright__ = 'Copyright 2012, Google Inc.'
__license__ = 'Apache License 2.0'
__version__ = '0.2'
__status__ = 'Prototype'


class ImageHandler(BaseHandler):
  """Handles requests to display icons for registered applications."""

  def get(self):
    """Handles GET requests to display icons for registered applications."""
    application = db.get(self.request.get('app_id'))
    if application.icon:
      self.response.headers[http.Header.content_type] = \
      http.ContentType.image_png
      self.response.out.write(application.icon)
    else:
      self.error(404)
